A man in Hollywood offered to pay for a homeless man’s groceries. The transient thanked him by brutally attacked him with a hatchet.

Kisu Brady Brown was arrested Tuesday, after a surveillance camera outside a 7-Eleven caught the attack on camera.

The Los Angeles Sheriff’s Department said in a press release that Brown was allegedly shoplifting from 7-Eleven when an unidentified man approached him and offered to pay for the stolen items. "The suspect became upset, refused the victim's offer and a struggle ensued," the document states. Then, Brown struck the man in the head with an ax multiple times. Another man bravely tried to intervene in the attack, and rushed to the victim’s aid.

You can watch the video, which may be disturbing to some viewers, here.

"What makes this unique is we have a citizen who is trying to help a transient or a homeless person, help another fellow citizen out, and to be assaulted like this, it could be anybody's family member and for somebody to just take the liberty and do that it's very shocking," Sgt. Jeff Bishop told Fox 11. "It was shocking to everybody here at our station when we did receive the video."

Police said the victim was hospitalized after suffering severe injuries to his hands and skull. He is currently recovering in the hospital.

"One of his hands has been incapacitated to the point where he can't use it," Bishop said. "But fortunately, he's gonna survive."

Brown, a convicted felon, has been booked for attempted murder. He's currently being held on a $500,000 bail.